Map shows states west of the Mississippi River, Dakota, Indian Territory; western boundary of Wyoming beyond 110th line of longitude; southern border of Nevada along the 37th line of latitude. Relief shown by hachures. Scale: [ca. 1:8,553,600].

Map shows elevations along the 35th parallel at specific points between St. Louis and San Francisco. Relief shown by profile. Scale [ca. 1:2,534,000].

Map shows major physical features, areas of Native American habitation, major cities, and towns. Northern portion of map is labeled "Oregon Territory" and "Missouri Territory." Southern portion is "Upper California and New Mexico" with the "February 1848 Treaty Boundary Line between Mexico and the United States." Notes and "explanations" are included. Inset: "Profile of the Traveling Route from the South Pass of the Rocky Mountains to the Bay of San Francisco." Relief shown by hachures and spot heights, and by profile. Scale [1:3,000,000].

Map shows major physical features, areas of Indian habitation, major cities and towns; northern portion of map is labeled Oregon Territory, Missouri Territory, southern portion is Upper California and New Mexico; February 1848 treaty boundary line between Mexico and the United States. Includes notes and "explanations." Inset: "Profile of the travelling route from the South Pass of the the Rocky Mountains to the Bay of San Francisco." Relief shown by hachures and spot heights, and by profile. Scale [1:3,000,000].

Map shows overland routes from St. Joseph and Independence, Missouri to the West, one crossing through California gold country and ending in Sacramento, California, and the other continuing on into Oregon; areas of Indian habitation, major cities and towns, and landmarks. Inset: "United States West of Mississippi River showing political divisions in 1849." Relief shown by hachures. Scale not given.

Map shows overland routes from St. Joseph and Independence, Missouri to the West, one crossing through California gold country and ending in Sacramento, California, and the other continuing on into Oregon; areas of Native American habitation, major cities and towns, and landmarks. Inset: "United States West of Mississippi River showing political divisions in 1849." Relief shown by hachures. Scale not given.

Map shows overland routes from St. Joseph and Independence, Missouri to the West, one crossing through California gold country and ending in Sacramento, California, and the other continuing on into Oregon; areas of Native American habitation, major cities and towns, and landmarks. Inset: "United States West of Mississippi River showing political divisions in 1849." Relief shown by hachures. Scale not given.

Map shows overland routes from St. Joseph and Independence, Missouri to the West, one crossing through California gold country and ending in Sacramento, California, and the other continuing on into Oregon; areas of Native American habitation, major cities and towns, and landmarks. Inset: "United States West of Mississippi River showing political divisions in 1849." Relief shown by hachures. Scale not given.

Map shows overland routes from St. Joseph and Independence, Missouri to the West, one crossing through California gold country and ending in Sacramento, California, and the other continuing on into Oregon; areas of Native American habitation, major cities and towns, and landmarks. Inset: "United States West of Mississippi River showing political divisions in 1849." Relief shown by hachures. Scale not given.

Map shows overland routes from St. Joseph and Independence, Missouri to the West, one crossing through California gold country and ending in Sacramento, California, and the other continuing on into Oregon; areas of Native American habitation, major cities and towns, and landmarks. Inset: "United States West of Mississippi River showing political divisions in 1849." Relief shown by hachures. Scale not given.

Map shows overland routes from St. Joseph and Independence, Missouri to the West, one crossing through California gold country and ending in Sacramento, California, and the other continuing on into Oregon; areas of Native American habitation, major cities and towns, and landmarks. Inset: "United States West of Mississippi River showing political divisions in 1849." Relief shown by hachures. Scale not given.

Map shows overland routes from St. Joseph and Independence, Missouri to the West, one crossing through California gold country and ending in Sacramento, California, and the other continuing on into Oregon; areas of Native American habitation, major cities and towns, and landmarks. Inset: "United States West of Mississippi River showing political divisions in 1849." Relief shown by hachures. Scale not given.

Map shows overland routes from St. Joseph and Independence, Missouri to the West, one crossing through California gold country and ending in Sacramento, California, and the other continuing on into Oregon; areas of Native American habitation, major cities and towns, and landmarks. Inset: "United States West of Mississippi River showing political divisions in 1849." Relief shown by hachures. Scale not given.

Map shows settlements, areas of Indian habitation, "Ruperts Land ou Nouvelle Bretagne" [Canada], "Louisiane," Missouri Territory, [Mexico], and District de la Colombia [Washington and Oregon]. Relief shown by hachures. Scale [ca. 1:8,000,000].

Map shows trail route from Independence, Missouri (and also St. Joseph) to Sacramento, California across the "political divisions of the Great West": Missouri, Kansas, Nebraska, South Dakota, Wyoming, Colorado, Idaho, Utah, Oregon, California, and Nevada, landmarks and areas of Indian habitation. Includes note describing area and history of the route. Inset: United States west of Mississippi River showing political divisions in 1849. Relief shown by hachures. Scale not given.

Map shows proposed railroad route from St. Louis to San Francisco following the Missouri, Platte, Sweetwater, and Humboldt Rivers. Scale not given.